public class switchTest {
    public static void main(String[] args) {
        int num = 5;
        switch (num) {
            case 20:
                System.out.println("20");
                break;
            case 10:
                System.out.println("10");
                break;
            default:
                System.out.println("0");
                break;
        }
    }
}
